For long time we have looked at Isotta progress but we have never buied their products. At the present we have buied the housing for D800 and we are completely satisfied. The experience of Egidio Isotta and the enthusiasm of the son Elisa and Andrea her husband are their best strenght. Another advantage is that they are a family industry opened to talk about every needs or problems. The housing is fully equiped, strong but not heavy, easy to use like if the camera should be on the ground. They don't pay me for these words but after some years to find at least an Italian product at international level make me happy. And then it has always been in Red Ferrari ....... That's all. In the last months we have used without problems and we have added any personal changes to the arms for our use. Just only one last thing: if you ask them to prepare something of different they need more time because they are, like I told, a family industry. Happy if I have been useful to other scuba diver. Enjoy your shots !